A/C in reverse

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A/C in reverse

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Cadillac >> Cadillac Models >> Cadillac DTS >> A/C in reverse

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A/C in reverse - 9/8/2007 12:36:24 AM

derrickwi

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I have a 2000 DTS. A/C works fine when outside temperature is mid 80 and below. Above mid 80 and 90 degrees outside A/C blows hot air through all vents. Any ideas? Thanks Guys.

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RE: A/C in reverse - 9/8/2007 12:32:00 PM

stomper

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quote:

ORIGINAL: derrickwi

I have a 2000 DTS. A/C works fine when outside temperature is mid 80 and below. Above mid 80 and 90 degrees outside A/C blows hot air through all vents. Any ideas? Thanks Guys.

sounds like a sensor is shutting system down.
low refrig?
engine running to hot?

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(in reply to derrickwi)

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RE: A/C in reverse - 9/8/2007 1:56:15 PM

derrickwi

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Thanks. Engine doesnt read hot.

Even at moderate temps left side is blowing a little warmer than right. Swapped over temp sensors left and right. No difference. I am beginning to think its the instrument panel module. I get a code B0429 but thats the rear hvac door actuator. Again manual points to IPM. I think thats a dealer replacement isnt it because the manual says it has to be calibrated

Thanks again.

(in reply to stomper)

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RE: A/C in reverse - 9/8/2007 1:57:33 PM

derrickwi

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Alsos checked refrig. Thats OK

(in reply to derrickwi)

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